Filling device



Matchs, 1937. J; J, L|ND|NGER 2,073,112

- I EILLING DEVICE Filed oct. l1.o, 195s fL/Z JL d" Y. l I .n u: angel; f wf Wa, xm@

gwwntoz APacman Mar. 9, 1937 UNITED STATES The Electric Storage Battery Co mpany, Philadelphia, Pa., a corporation of New Jersey v Application october 16, 193s, serial No. 692,96?.V

` 1 claim. (01251-161) The object of my invention is to provide an improved valve seat for a manually operated filling device especially adapted for use with electric storage batteries.

5 My improved valve seat consists essentially of a washer of soft rubber, or like material, which is compressed between portions of the valve casing to assume a rounded cup-shape to make contact with a hemispherical valve over a 1o greater surface area than would otherwise be the case.

'I'he present invention is an improvement over the subject-matter of my prior copending applications, Serial Nos. 592,507 and 624,169.

For a further exposition of my invention, reference may be had to the annexed drawing and specification at the end whereof the novel features of my invention will be specifically pointed out and claimed.

30 In the drawing:

Fig. 1 is a view through my device, principally in vertical cross-section;

- Fig. 2 is a view through a portion of `my device, principally in vertical cross-section, showing the device in another position;

Fig. 3 is a view through a portion of mydevice, principally in vertical cross-section, showing a modification; and l Fig. 4 is a partial view in vertical cross section.

-Referring to Figs. 1, 2, and 4, there is shown a lling device having a valve seat consisting of a fiat, soft, rubber washer l, supported in a cavity or sloping face of a cup-shaped washer or support 2, whose upper, sloping face 3 is frustoconical in shape. In Fig. 2 the rubber washer.

I is shown in its normal shape before compression is'applied to it by screwing down the cap l on the body 6 by means of the screw-threaded engagement therebetween. This applies com- 40 pression to the valve seat I. When the cap 4 is screwed down tightly, so as to compress the rubber washer or valve seat I, the latter assumes the shape shown inA Fig. 4, the upper surface being then forced down into a rounded, cupshape, so that the hemispherical surface of the 'valve 5, when it drops to its seat on the rubber washer I, makes contact with the latter over a considerable area rather than on a restricted edge, as would be the caseif the rubber washer I retained its original shape as shown in Fig. 2. Intermediate its e'nds, body 6 carries a sliding sleeve 1, and, at its'lower` end, a stationary cap 8. Sleeve 1 carries a pin 9 which rides in slots I0 in body 6, and in slot II in 4valve 5. 5

The operation of my device is as follows.

When it is desired to fill a storage battery or other receptacle. the filling device is inserted into the battery. When sleeve 1 contacts with the battery cover B, the lower ends of slots I0 10 are opened, to permit escape of any liquid within body 6. Further, the movement of sleeve 1 forces pin s9 into contact with the upper end of slot I l, and thus opens valve 5 into the position shown in Fig. 4 without, of course, disturbing the valve l5 seat, except as the weight of valve-5 is released therefrom. This permits fluid to enter from cap 4 through the opening in valve seat I, and through the lower ends of slots I0 into the battery. When liquid in the battery has risen to a 20 sumcient level, the filling device is lifted, thus closing valve 5 and afterwards closing the. lower ends of slots I0. Since slots I0 are open after valve 5 has closed, the drainage of any liquid within body 6 through slots I0 is permitted, and 25'.

upon the closing by sleeve 1 of slots I0 further drip or leakage of liquid is prevented.

In Fig. 3 there is shown a modification of my device, in which body 6 has its upper end formed directly with a sloping face 3, so as to eliminate 30 the cup-shaped washer or support 2 shown in Figs. 1 and 2.

`I do not intend to be limited save as the scope of the prior art and of the attached claim may require.

I claim: y y

A filling device comprising, in combination, a cap, a hollow body having adjustable engage-` ment with said cap, a valve located within said cap and said 'body and having a hemispherical 4o surface portion, an annular support located be tween said body and said cap and having an upstanding rim and a sloping face within said rim,V and an annular, soft rubber washer located. within said rim and clamped between said slop- '45 ing face land said cap and having a rounded valve seat for engagement with aportion of said hemisphericai surface of said valve.

JOHN J. LINDINGER. 

